Sika deer were introduced to the UK in the 19th century. They are native to eastern Asia.

The UK's largest native grasshopper is also one of its rarest, found only on wetlands in a few parts of England.

One of the longest seaweeds native to the UK, thongweed helps create a beautiful underwater forest to rival that of any on the land!

These distinctive beetles are often found around dead birds and small mammals.

Also known as the two-coloured mason bee, this beautiful bee is famous for nesting in old snail shells.

Introduced from Japan in the 19th century, Japanese knotweed is now an invasive non-native plant of many riverbanks, waste grounds and roadside verges, where it prevents native species from…

Escaped or intentionally freed from fur farms in the 1960s, the American mink is now well established in the UK. Its carnivorous nature is a threat to our native water vole and seabird populations…

Bog-myrtle, also known as sweet gale, is a small shrub that is native to wet heaths and bogs across the Northern Hemisphere.